Database Users

[HOWTO] Cleaning your ROM for better battery life ~ up to 5 days

Disclaimer
I am not responsible for any damage to your phone and/or any consequences from your phone being bricked, exploding in your face etc etc etc... You are expected to read the full description and use your brains to process this information, before even touching your phone. Assumed is that you know how to flash using CWM.
Whining that you disagree to remove bloat is not appreciated; If you want to keep your phone bloated for whatever reason, you are at the wrong thread. Feedback should be substantiated and reproducible, not a ventilation of your bottom.​
Context
The intention of this thread is to set an approach how to minimize the battery consumption when you are NOT using your device, e.g. when you are at work, sleeping, at some place that does not allow you to recharge, etc. This guide explains how to thoroughly remove stuff that you probably do not need, something that certainly will not affect your battery life in a negative way. The approach is based on the ROMCleaner script, which was extended a bit. Whether it is necessary to remove all the stuff as described, is debatable - nevertheless it is an approach that works for me, otherwise I would not be posting it.
Because a lot of people replied with phrases like "this is bullsh*t", let me state the following: This approach is in no way a guarantee that you will actually achieve battery life longer than 2 seconds after a full recharge. Neither is it a part of the bible, it is merely the approach I followed to prolong the battery life of my device - which I like to share with you. If you are still hating, wonder yourself: "What have I contributed lately?". In any case, at least try it out yourself before drawing your conclusion beforehand and polluting this thread.
The second discussion point is whether the battery should last longer than 1 day. According to many, you are not using your device properly if you would like this to be the case. My answer is simple: If you have no such desire, move along. If you do, like I do, this topic might be of some worth to you.
Furthermore, I honestly do not understand statements like '2-3-4-5 days is impossible' on one battery charge. If you are convinced that Jesus will return again, please do so, but give other people the space to actually find out whether it is the case for themselves.​
Some Introduction...
Have you been annoying your ass of because your battery is drained within a day, without even using the phone while at work? I certainly have. Coming from a SGS1, which used to serve me at least 3 days on one charge, I got instant diarrhea from the battery life of the stock SGS3 firmware.
Then I downloaded a ROM, stripped everything unneeded and more and finally got a battery life of approx 3 - 4 days. However, because I had ripped a ROM apart, which was a manual operation, updating became quite time-intensive. Therefore I also did not update, until the recent JB leaks. So this time I though: Lets make a script to do it for me, in order to make updates possible in an easy way. Then I only have to run the clean-script after an update.
After some testing, I am finally satisfied with my device again - Check out the screenshots. The results are achieved while having wifi constantly on, using google sync and whatsapp. The screenshots are based on Wanamlite XXDLI7; The first shows the battery usage during a night, the second during a day of light phone usage. I will post another screenshot when the battery is drained completely.​
What to expect and trade-offs
After completing this procedure you can expect significant increase of battery life when the phone is idle. If you are using the phone actively all day long, then this approach might not be of much worth to you. People who do not have time to play with the phone all day, e.g. because they work during the day, will probably find this most useful. The cleaning of your rom will remove about 70% of the apps/widgets that come by default, therefore it is wise to check whether you will not lose apps/widgets that are valuable to you. You are still free to modify the "script" according to your need/desire.​
So what do we need?
A DEODEXED Stock-based ROM, I prefer wanamlite http://forum.xda-developers.com/showthread.php?t=1705866
ROMCleaner - http://forum.xda-developers.com/showthread.php?t=1827817
The attached ROMCleaner_user.txt will sustain default samsung browser, calendar, email and messaging. (untested)
The attached ROMCleaner_user_jb-apps.txt expects you to replace the JellyBean apps discussed next. Beware that the stock browser, calendar and email are not tested by me and could drain your battery faster.
Because I had some issues that ROMCleaner would not read the ROMCleaner_user.txt, I had to integrate the file into the ROMCleaner package. To do this, you can download the ROMCleaner package and replace META-INF\com\google\android\romcleaner\ROMCleaner.txt in the zip by the file you just downloaded.
Packages to restore some stuff ^^
If you have chosen for the JellyBean apps package (jbapps-avdaga.zip) you will get:
JellyBean browser + calendar ripped from http://forum.xda-developers.com/showthread.php?t=1797109
Inverted JellyBean apps: email and messaging ripped from http://forum.xda-developers.com/showthread.php?t=1780559
In case you want Samsung Apps store for free fancy games, get it from http://forum.xda-developers.com/showthread.php?t=1861409
Got the packages, whats next?
Put all files on your phone, reboot to CWM.
Make a backup of your current system, smart monkey.
Flash the JellyBean ROM of your prefrence if you have not already. (If you come from ICS, wiping your data guarantees best results).
"Flash" the ROMCleaner script, either by using ROMCleaner_user.txt approach, or integrating the file.
If necessary, flash the provided JellyBeans apps package and Samsung Apps package.
Reboot and enjoy your awesome battery.
Thanks to
Wanam for his awesome ROM.
Patrics83 and others for ROMCleaner.
Temasek and CyanogenMod team for proper Android apps.
All others I forgot.
Interesting Posts
flypubec said:
@OP: Your post is missleading. Removed bloatware has nothing to do with the battery life.
After intensive research I came to the conclusion that there are only 2 major issues for the battery drain on vanilla stock ROM (JB DLI8).
Those are:
1) Samsung push service : SOLUTION -> simply unstall it, bacause you don't need it anyway (e.g. via Titanium backup).
2) Wrong fast dormancy setting : SOLUTION -> use https://play.google.com/store/apps/details?id=com.gokhanmoral.fastdormancytoggle.i9300&hl=sl from gokhanmoral to toggle it to the setting supported by your carier. BE careful not to toggly it exactly the oposite.
With these 2 mods on stock DLI8 I get less than 0.5% battery drain while idle over an hour.(Mail sync set to every 30 mins)
Click to expand...
Click to collapse
>> If you like to keep all samsung stuff, this indeed is probably a better approach.
manemzjum said:
Charging your phone and putting it in airplane mode for 23 hrs your fooling no-one
Click to expand...
Click to collapse
>> In the screenshot you can see the mobile network signal.

Nice!
I've been on Stock-rooted since I got the device. I'm definitely going to try this out.
I use my phone plenty, doubt I'd be able to get 5 days out of it, but we'll see.

Is it better than just freezing all the unwanted apps?

eggman89 said:
Is it better than just freezing all the unwanted apps?
Click to expand...
Click to collapse
Cannot promise that, but you can compare the list of removed apps in ROMCleaner.txt

Will it work with a LH1 (BTU)- stock rom? (Rooted, of course)
Thanks!

According to the images, the screen was off 99% of the time, am I missing something?

DorEzo said:
Will it work with a LH1 (BTU)- stock rom? (Rooted, of course)
Thanks!
Click to expand...
Click to collapse
It should, make a backup and try for yourself. Do take into consideration that you might need the default ICS apps or simply use the ROMCleaner_user.txt, not the JB one.

yellowbiz said:
According to the images, the screen was off 99% of the time, am I missing something?
Click to expand...
Click to collapse
The first image is supposed to show how it performs when idle, the second is after a day of usage. Primarily used it for some messaging and calls though, however the main point is that the battery is not drained when not using the phone. When I used a stock rom the battery was depleted for 50% after half a day without me even touching the device :-\
Of course if you use the phone normally the battery will be depleted in 3-4 days, like i mentioned in the intro.

I know how to get years of battery life, charge your phone to 100%, take the battery out for at least 2 years, and it should have some life left in it, you must make sure you don't put the battery in for at least 2 years.

What are you guys whining about..if it can improve your battery life and remove the apps that you dont need, why not? You should be thankfull that people put their work in such things in their free time.
Sent from my GT-I9300 using xda app-developers app

henrybravo said:
Yay, let's remove a bunch of features from the phone so that when you're not using it at all, you can get 5 days of battery life! :silly: Your claim of "normal" usage equaling 3-4 days is pretty unrealistic. Battery usage is subjective with thousands of variables, which makes lofty claims of battery life completely pointless.
Nearly all of your battery life improvements are just doing step #1.
You're using a rooted and tweaked stock ROM with a tweaked kernel. Just by doing this, you're going to get much better battery life versus stock ROM. Nothing new to see here. Removing what little other "bloat" that Wanam left in the ROM by removing a bunch of apk's (that don't run anyway unless you launch them) and replacing a few ICS apps with JB versions will only offer a very small improvement.
Click to expand...
Click to collapse
Please install any stock-based ROM and check the services that are running in the background - without you even know you had them. There is a lot of garbage coming in all stock-based roms, and I really do not understand the problem of removing stuff you do not use; Morever, I think this is something people should do in all apsects of life; that is removing sh*t you do not use.
I conclude your assertions are based on thin air, as you did not even take the time to test this approach. I have spent quite some time testing stuff out and posting my observations here - so please do not post if you have nothing constructive or reproducible to say.
Last thing: I do not replace ICS apps with JB, this stuff was tested on a JB rom - but you knew already because you read the full post

so basically you debloat a stock deodexed Rom? Any other changes I'm missing?

slaphead20 said:
so basically you debloat a stock deodexed Rom? Any other changes I'm missing?
Click to expand...
Click to collapse
Besides changing some samsung apps for CM10 ones, that is it indeed. Though the debloating is more thorough than proposed by others.

Ok, thanks,, just wanted to know exactly what the script did, prefer my own debloating and tweaking, but good for newcomers.

there are also people that are not normal and want to use their phones on trips or in situations when they have no charging opportunities

@OP: Your post is missleading. Removed bloatware has nothing to do with the battery life.
After intensive research I came to the conclusion that there are only 2 major issues for the battery drain on vanilla stock ROM (JB DLI8).
Those are:
1) Samsung push service : SOLUTION -> simply unstall it, bacause you don't need it anyway (e.g. via Titanium backup).
2) Wrong fast dormancy setting : SOLUTION -> use https://play.google.com/store/apps/details?id=com.gokhanmoral.fastdormancytoggle.i9300&hl=sl from gokhanmoral to toggle it to the setting supported by your carier. BE careful not to toggly it exactly the oposite.
With these 2 mods on stock DLI8 I get less than 0.5% battery drain while idle over an hour.(Mail sync set to every 30 mins)

Does this work on the omega rom by any chance. i only need at least a full day worth or battery

Iffay said:
Does this work on the omega rom by any chance. i only need at least a full day worth or battery
Click to expand...
Click to collapse
It should work on any stock-based rom, also omega.

My thoughts...really.
I don't wanna sound rude, yet i had to agree with some when they say "buy a Nokia (old one of course" or just "disconnet for one or two years".
It's virtually impossible with the kind of gadgets we have these days any battery last more than 1 day.
I've made my own mods and roms from scratch in recent past for X10, so u may consider at least that i known what i'm talking about.
The only way, no mather witch brand you like or believe its the best, is by f#@king your screen. Period. That is the main reason why every phone just last 1 day with "normal" use.
If you've payed attention i've used "normal" expression witch means phone, mail, sync and didn't wrote "heavy use" that will include music, YouTube, videos, etc.
Like i said. I've made my own work in the past and still do some minor (?) changes and i must say this: i'm glad if my phone last one working day from 7AM till 23PM. Yes! Working day, that's why i dont't develop anything.
If you or anyone else state that your/his phone had better battery life than this i make two considerations:
1. You're (not you in particular) a liar, or;
2. You simply don't use your phone as you can.
If you dont consider that you belong at the first consideration than..."buy a Nokia..."
Another thought:
You just bought this (or similar) phone for a status matter or money it's something that's really cheap for you (another 2nd choice).
Like i said...just my 2 cents.
Cheers
R.
Sent from my GT-I9300 using Tapatalk 2

No way you have devised a way for your phone not to use battery while not using it
What's your next project you gonna design a wireless device that can change my tv station using infer red lasers
Oh wait both of these already exist
Charging your phone and putting it in airplane mode for 23 hrs your fooling no-one
Sent from my GT-I9300 using xda app-developers app

Best tips to save some battery juice [easy]

I'm going to make things a little different now. I see a lot of threads here, and the only solution are: don't use X, low down performance, blah blah blah.
I'm going to make a change at your psychological side, or at least try. That's your worse enemy, which will make your battery last shorter.
**First part: testing ROM+Kernel combo
1. Install your ROM, delete the apks you don't need, and make some tweaks you want. Done?
2. Install another kernel.
3. Configure your device by installing your apps and stuff
4. Reboot
5. Test your combo for 1 day!! Only 1-one day.
6. Read second part to see if your battery life is good
**Second part: what should you consider while testing your combo
1. After the one day test [morning to evening], is your battery still working? If yes, you HAVE A GOOD BATTERY LIFE. You shouldn't care about how % the battery is, as long it lasts for the day.
2. If your battery is really going down fast, and it doesn't last till evening
a) Change kernel and try for another day.
b) Use BetterBatteryStats to see if there's something pissing off your battery
c) If you really need this extra juice to make it last till evening, low down ONLY A LITTLE BIT THE PERFORMANCE
3. Is performance good? If yes and your battery lasts or the day, you may now be happy.
4. Is performance bad? If yes, I'm going to say something to you. WHY THE HELL SHOULD ANYONE BUY A FREAKING 1,4GHZ QUAD-CORE **** TO HAVE BAD PERFORMANCE? Increase your performance, and if it's enough to get it alive after you go home, it's enough.
**Third part: things you shouldn't do
1. Don't put the % at status bar. It only makes you paranoic about looking at the battery %
2. NEVER check for available RAM, or battery %, but if the battery icon is going down quickly, make the basic stuff to save juice. Checking RAM and stuff will only make you complain at your ROM/kernel forum, even if it's normal. And don't use task killers, Samsung's task manager, etc. Cleaning memoy will only piss off your battery and cpu.
3. ALWAYS put your phone in the charger before you go sleep. Why would anyone want to make the battery last for 1d or 2d? Bull****, just charge every night, I see no problem by doing that.
4. USE, ABUSE, RAPE THE CRAP OF YOUR PHONE. Your phone is there, and have you think about how you use it? To check for battery % or actually use the phone?
**Observations
1. There's no such thing as miracles for that. Anything can count to change the battery drain: temperature, external temperature, pressure, apps, how you use it, etc...
2. Choose a stable kernel and DON'T undervolt it. Yeah, undervolt can be useful, but makes stability looking like crap.
3. This may be completed later.
Hope I could help some battery freaks here

marcellocord said:
I
**First part: testing ROM+Kernel combo
1. Install your ROM, delete the apks you don't need, and make some tweaks you want. Done?
2. Install another kernel.
3. Configure your device by installing your apps and stuff
4. Reboot
5. Test your combo for 1 day!! Only 1-one day.
>>>>
One day is not even long enough to calibrate the battery on a new rom .
1. After the one day test [morning to evening], is your battery still working? If yes, you HAVE A GOOD BATTERY LIFE. You shouldn't care about how % the battery is, as long it lasts for the day.
STUPID COMMENT .
Why are so many users posting stupid untrue stuff just to lead noobs up the garden path .
jje
Click to expand...
Click to collapse

I know a couple things to help with the battery drainage, from personal experience.
1. GPS, turn it the hell off unless you truly absolutely need it.
2. The Facebook app. One of the biggest battery hogs I know of besides heavy 3D-games.
3. Sync. Why choose to auto-sync? Turn it off and sync only when you feel you have to. Check Gmail manually, manually sync contacts and stuff when you feel it is needed
4. Location services. Might prove useful to some, while to others it drains the battery quicker.
These are the four battery hogs by my experience. You may not think the same.

Theshawty said:
I know a couple things to help with the battery drainage, from personal experience.
1. GPS, turn it the hell off unless you truly absolutely need it.
2. The Facebook app. One of the biggest battery hogs I know of besides heavy 3D-games.
3. Sync. Why choose to auto-sync? Turn it off and sync only when you feel you have to. Check Gmail manually, manually sync contacts and stuff when you feel it is needed
4. Location services. Might prove useful to some, while to others it drains the battery quicker.
These are the four battery hogs by my experience. You may not think the same.
Click to expand...
Click to collapse
GPS is really only on if an app is using it, if you have it on but an app is not using it it will not drain the battery. It's shown under settings battery and it shows GPS using no battery unless an app is using it.
Sent from my GT-I9300 using xda premium

Nice!

Everyone keep their pants on except Chris
Sent from my GT-I9300 using xda app-developers app

Just a Snapple fact. Longest commercial flight possible is 18 hours and that will take you more then halfway around the world. And at the 16 hour point the co pilot is looking at the fuel gage, sweating profusely, and mentally going over his Will.
That does not include layovers. But at that point you have access to outlets.
Now with that out of the way. Lock this shiz.

OP, while others might have not been receptive to your thread you were the first to really start the flaming by name calling. I didn't see anyone calling you a "*****"
I saw people not agreeing with you and voicing that, but you were the one that actually crossed the line with the name calling and such.
Thread closed (and will be cleaned)

S7 Edge Battery Life after root is worse, due to Kernel / CPU usage?

So just before I continue this I want to say that I have Trickster installed and have done all the tips and fixes for root on the phone, and I notice that my battery drains pretty fast when in use.
I just was curious if it's cause of the Verizon version I'm on (before PE1) would anyone be able to tell me their battery life after root and give me any tips other than the ones already posted?
And please if you require more info on my battery stats, please ask, and I'll give you guys whatever you need.
Thanks in Advance.

Hate to bump.. but could use help... or advice... x.x

Squall429 said:
Hate to bump.. but could use help... or advice... x.x
Click to expand...
Click to collapse
I went back to stock after having almost all the possible modifications to enhance battery life on root. One small tip is that if you flashed the V15 fix zip, you didn't need to change governor settings manually. Even so, no matter what I did, I could only get to about 3 hours of SOT by the end of the day even without GPS use and all that before the battery is drained. After restoring stock, I'm seeing my usual 4-5 SOT of daily usage.
I'd rather wait to see if root is improved without the high CPU usage because of eng boot, from what I was told. Good luck.

I too have noticed decreased battery life though I can offer no suggestions to fix. I just downloaded a CPU control app to play around with. Right now I am able to get through the day so thats all that really matters, but its definitely decreased from before root.

Advice about rooting

Will root benefit my battery life?
Some people say is not worth rooting anymore

You can do some debloating without rooting. There is the package disabler pro for samsung devices. You can also use tools like greenify, which should help somewhat with hibernating apps and aggressive doze. Both options should be able to improve battery life considerably without root.
You do need root if you intend to go after wakelocks, which you can do with apps like amplify. This isnt mandatory as long as long as wakelocks dont keep your phone awake for too long though. Getting a different kernel could also improve things there but I can't say the difference would be dramatic.
All in all, I am inclined to say its probably not necessary to root your phone just for extended battery life. Having amplify is a relevant part of optimization but as long as you can kill the related app, you might not need it.

Are reports of battery drain after rooting real??

My s7 is arriving today and I was all set to root. But I keep reading posts about how the phone becomes super laggy with all types of battery drain.
I guess I'm trying to gauge if that's a real issue or people just overreacting.
If anyone can share their findings and thoughts I'd appreciate it.
Sent from my HTC6545LVW using XDA-Developers mobile app

If you follow all the steps after rooting it's not bad. Sot is not as good but standby time is the same for me. I also have no lag.

mpetruzz said:
My s7 is arriving today and I was all set to root. But I keep reading posts about how the phone becomes super laggy with all types of battery drain.
I guess I'm trying to gauge if that's a real issue or people just overreacting.
If anyone can share their findings and thoughts I'd appreciate it.
Click to expand...
Click to collapse
Follow swicks lag thread. When I first got my s7, I couldn't go more than 7 hours without having to charge it. First day with the tweaks in his thread. I got this

Look into the U firmware. It removes the Verizon bloat, stable, and great battery life!

You can fix idle time on stock by downloading ez disabler (Samsung) from the market and getting a XML list of everything to disable.
Sent from my SM-G930V using XDA-Developers mobile app

Yes

Maybe? - another issue?
mpetruzz said:
My s7 is arriving today and I was all set to root. But I keep reading posts about how the phone becomes super laggy with all types of battery drain.
I guess I'm trying to gauge if that's a real issue or people just overreacting.
If anyone can share their findings and thoughts I'd appreciate it.
Click to expand...
Click to collapse
I rooted my SM-G930V, and I am experiencing some heat from the phone when it is sleeping- not so much when it is unlocked and operating.
As for battery drain- I have not noticed any major loss in battery usage.
There also seems to be a significant speed issue with speed- took around 5 seconds to open the settings app, But this can be fixed by
editing CPU governor from interactive to ondemand with Kernel Aduitor.
I am looking into this article to fix the heat issue: http://forum.xda-developers.com/ver...guide-to-fix-s7-lag-root-s7-variants-t3441715

Stang5litre rom and you wont regret it

You can do a lot with various Xposed modules and other root apps to mitigate the drain, but there is some drain nonetheless. SOT takes a bit of a hit. Standby time, it's negligible.

I recommened personally sticking to stock. I use to be rooted and between battery life and issues I went back to stock. This was before the roms came out. I have a new born and a family I can't play around with signal dropping, phone restarting, lagging and whatever else. I like stock with nougat beta. If the bootloader ever gets unlocked or something else that interests me to root maybe one day but not worth it for me right now.
Sent from my SM-G930V using XDA-Developers mobile app

With Stang5litre's rom I've have zero problems.

There is no way with any rom or any app (unless it is magical and brand new) that you aren't having issues with this phone and root. I tried every app I could and 2 roms available here for it as well and it was still laggy with terrible battery life. I held on with this phone as long as I could hoping for a better root method but I couldn't wait any more. The performance after a few apps and kernel changes is still terrible compared to stock. The battery life after fixes and kernel changes is equally as terrible. I was getting around 1 hour and 10 mins of SOT before it was completely dead. I loved the phone and stock it had great performance and battery life, but that eng kernel for root just destroys it. I NEED root on my phone or I would have kept it stock. Word of advise, keep this phone stock or sell it and get something that can be rooted and actually stay usable.

JAYNO20 said:
There is no way with any rom or any app (unless it is magical and brand new) that you aren't having issues with this phone and root. I tried every app I could and 2 roms available here for it as well and it was still laggy with terrible battery life. I held on with this phone as long as I could hoping for a better root method but I couldn't wait any more. The performance after a few apps and kernel changes is still terrible compared to stock. The battery life after fixes and kernel changes is equally as terrible. I was getting around 1 hour and 10 mins of SOT before it was completely dead. I loved the phone and stock it had great performance and battery life, but that eng kernel for root just destroys it. I NEED root on my phone or I would have kept it stock. Word of advise, keep this phone stock or sell it and get something that can be rooted and actually stay usable.
Click to expand...
Click to collapse
I get about 5-6 hours SOT and no performance issues. I occasionally overheat but that's it. Different people have different results, for whatever reason.